Duplicating composition



UNITED STATES PATENT OFFICE.

GEORGE H. xumz, or MEADVILLE, rnmwsvnvanm.

OUPLIOATING COMPOSITION.

Be it known that I, GEORGE H. KURTZ, a citlzen of the United States," residing at Meadville, in the county of Crawford and State of Pennsylvania, have invented certain new and useful Improvements in .Duplic-ating Compositions, of which the following is a specification.

This invention has for its object to provide a plastic composition for duplicating letters either written or typewritten, or printed and also for duplicating drawings, although the invention is not necessarily limited to such use as the, compound may be used for dental purposes as for making impressions of the mouth and gums.

Another object "is the provision of a compound or composition of this character p0ssessing desirable qualities such, as quick setting properties and economy of manufacture.

The invention consists of a compound Specification of Letters Patent.

Patented Nov. 11,1919.

' Application filed March 6, 1919. Serial No. 281,063.

composed of kaolin 53%, glycerin 31.8%, dextrin 4.5% and dental plaster 10.7%.

The ingredients are thoroughly-mixed in the proportions above stated and duplicators consisting of the composition are manufactured in various sizes.

Owing to the pliability and quick setting propertles of the composition it is certainly adapted for duplicatlng letters, drawings and the like. 7

What I claim is: r

1. The herein described composition of matter consisting of kaolin, glycerin, dextrin and dental plaster.

2. The herein described composition of matter consisting of kaolin 53%, glycerin 31.8%, dextrin 4.5% and dental plaster hereto.

it GEORGE HfKUR'l Z.

- In testimony whereof, I aflix my signature 

